Device for transmitting motion



(No Model.) 2 lSheets-Sheet 1.

G. s. STRONG. DEVICE FOR TRANSMITTING MOTION.

No. 471,656. Patented Mar. 29, 1892.

(No Model.) 2 Sheets-Sheet 2. G. S. STRONG. DEVICE FOR TRANSMITTING MOTION. No. 471,656.

Patented Mar. 29, 1892.

UNITED STATES PATENT OFFICE.

GEORGE S. STRONG, OF NEY YORK, N. Y., ASSIGNOR TO JAMES N. GAMBLE, OF CINCINNATI, OIIIO.

DEVICE FOR TRANSMITTING. MOTION.

SPECIFICATION forming part of Letters Patent No. 471,656, dated March 29, 1892.

Application filed May Z9, 1891. Serial No. 394,466. (No model.)

To all whom t may concern:

Be it known that I, GEORGE S. STRONG, of the city and county of New York, State of New York, have invented a certain new and useful Device for Transmitting Motion, of

which the following is a true and exact description, reference being had to the accompanying drawings, which form a part of this specification.

1o My invention relates to devices for transmitting motion from one rotary body to another moving about the same axes of rotation, and particularly to devices used in connection with electric motors, the object of my I5 invention being to provide what I may calla huid-clutch, by which the motion of the one body is transmitted to the other, and to combine with such mechanism devices for varying the resistance offered by the fluid and an eleczo tric motor.

In another application, filed May 29, 1891, Serial No. 5949465, I have shown and described the device to which this application refers, together with a modification of the z5 same, but have not specifically claimed the particular mechanism to which this case refers.

The nature of this invention will be best understood as described in connection with 3o the drawings, in which it is illustrated, and in which- Figure l is a plan view showing two axles of a truck, each equipped with my invention and partly in section. Fig. 2 is an elevation of the part shown in Fig. l, partly shown in section on the line x of Fig. 1. Fig. 3 is a cross-sectional View taken on the line y 'y of Fig. 1; Fig. 4, an end View of the car-axle and the casing surrounding it and the side plate 4o of the casing removed, and it is shown-partly in section on the line z z of Fig. 3; and Fig. 5 is a cross-sectional view taken through one of the end plates of the casing on the line 1 2 of Fig. 4. l

A is a shaft, in the present case a car-axle, and B a gear-wheel secured to the said shaft. Around this gear-wheel is a casing consisting of two end plates cxx, journaled on the shaft by means of sleeve extensions c and bolted to a casing center cx. 5o

c c are glands at the ends of the sleeve C.

Obviously the casing-center may, if desired,

be formed integral with one of the face-plates.

'In the casing made up as desired a chamber c2 is formed, which fits neatly around the gear- 5 5 wheel B, and iii-addition to said chamber one 0r more supplemental chambers os are formed in the casing, which chambers communicate with the chamber c2, as shown, and in which are situated gear-wheels D D, fitting neatly within their chambers and in engagement with the teeth of wheel B. The teeth of the engaged gear-wheels are formed so that they will segregate spaces between them as they roll together, and in the face-plates and on the line where the chambers c2 and c3 meet I-form ports c6 and c7, the rear portions of which communicate, as shown. The port cG opens into a straight passage c5, into which passage also the port c7 opens at cs. The communi- 7o cation between the ports is regulated by a valve E, preferably having a conical face E', which when moved over the portion o9 of passage 05 closes said passage entirely and which, in intermediate positions, can be made to partly close said passage.

The chambers c2 and c3 are filled with a fluid, and it will be seen that as the teeth of gears B and D roll together, the fluid inclosed between the teeth will be forced out 8o of the constantly-decreasing space, and will escape through one of the ports cf or c7 into the other of said ports, from which it enters the space between the teeth as they move apart, and it will also be seen that when the connection between the ports is closed, the iiuid cannot escape from between the teeth of the engaged gear-wheels, and therefore the wheels cannot rotate with respect to each other, but remain locked until the communication between the ports is restored. Now if the port communication be closed by the valve and either the shaft or the casing rotated, it is obvious that the rotation of the one wiil be directly communicated to the other, while, on the other hand, if the commu- A nication between the ports be open and the gears B and D permitted to rotatewith ,respect to each other the one part of the coupler can rotate independently of theother.

As shown in the drawings, ports are formed opposite to each other in each face-plate of the casing, and the two valves E, controlling the communication between the ports in each face-plate, are connected with the same spindle E2, which spindle is continued out through one face-plate, and secured to an annular ring M, which ring is fastened to a sleeve c of the casing, so as to rotate with it, but bev free to move laterally thereupon. By moving ythe ring to or from the casing, the valves attached to the spindles or valve -stein are simultaneously removed.

The central part ot' the casing is surrounded by an annular rim cored out or having openings @XXX between the said annular ring and the central chamber of the casing. Sup

ported on the rim is an armature-core I3, and

through the rim inside of t-he part supporting the core-holes I are formed, through which and holes 12 in the core are passed wire-Windings, as indicated at 14,'in such manner as to convert the entire rim of the casing into an annular armature, which as a whole is indicated by the letter I.

J ournaled upon the axle A, either directly or indirectly, and, as shown in the drawings, directly upon the sleeves c of the casing already mentioned, is a casing J, to and within which is secured the magnetic field J 3 of an electric motor, of which I is the armature. This casing is supported directly upon the axle or shaftA; but as it is not to rotate with the shaft, it must have another point ofsupport to hold it stationary. This in the drawings is indicated by the brace N, connecting two casings J on adjacent axles. The casing J is made as tight as practicable, in order to protect the armature and magnetic eld. One opening J 5 is formed in it, through which extends alever L4, havingforked ends L7, which are attached on each side of a ring M3, sur'- rounding the ring M, the lever being pivoted to a link L5, pivoted in turn on a bolt L6, secured to casing J. The upper end of lever L4 is connected by alink L3 with a lever-arm L2, extending out from shaft L, journaled in a projection J 6 of casing J, and which shaft is actuated by another lever-arm L', from which any convenient connection can be made combination of-a shaft A, having a pinion B,

a tight casing inclosing said pinion but free to turn on the shaft, said casing having a chamber c2, fitting neatlyaround the pinion B, one or more communicating chambers c2 and communicating ports c6 c7, arranged along the connecting-line at the end or ends of chambers c2 c2, as described, a pinion D, fitting neatly in each chamber c3, arranged to engage pinion B, a valve or valves E, arranged to regulate the opening between ports c6 and c7, electiid-.maggetic armature-windings secured to the casing, and a relatively fixed magnetic eld arranged around the ca sing, substantially as and for the purpose specified.

2. As a device for transmitting motion, thek combination of a shaft A, having a pinion B, a tight casing inclosing said pinion but free ,to turn on the shaft, said casing having a chamber c2, fitting neatly around the pinion B, one or more communicating chambers c2 chambers c2 c2, as described, a pinion D, fitting neatly in each chamber c3, arranged to engage pinion B, a valve or valves E, arranged to regulate the opening between ports c6 and c7, electiQ/-magpetic armature-windings secured tothe casing, a relatively fixed magnetic field arranged around the casing, and a casing forthe fieldfmagnets journaled on the shaft.

3. As a device for transmitting motion, the combination of a shaft A, having a pinion B, a tight casing inclosing said pinion but free to turn on the shaft, said casing having a chamber c2, fitting neatly around the pinion B, one or more communicating chambers c3, a

vport c5 c6, extending at right angles from the end of the connecting-line between chambers IOO c2 and c3, a port c7, extending from the opposite end ot' said connecting-line and connected with thefback end of port c5, a pinion D, tting in each chamber c3 and engaged with pinion B, a valve-stem E2, extending'through port c5, and a valve E, secured to said stem and adapted to close and regulate port c5, as described.

4. The combination of a shaft A, a pinion B secured thereon, a tight casing journaled on the shaft, having a chamber c3 to fit around pinion B, and chambers cs c3, communicating with the chamber c2, as described, pinions D D, fitting in chambers c3 and in lengagement with pinion B, ports c6 c7, formed in the side lines where chambers c2 and c3 communicate and connecting with each other, as described, valves E, arranged to regulate the communi. cation between each pair of ports c6 c7, as described, valve-stems E2, connecting said valves in pairs and extending out through the sideof the casing, a ring M, secured toa sleeve c of the casing, so as to turn with it but be free to move laterally, said ring being attached to end of valve-stem E2, and means for moving ring M, all substantially as and for the purpose specified.

cent1alelia1nbe1o2,andaneleetrie-niotorarma- Io ture consisting of a core kanglivii'e windings I4, passing through th/emeasing, run, and core,

5. In combination with a shaft A, having` a substantially as and for 'che purpose specified. pinion B attached to it, a easing journaled on said shaft having chambers C2 c3, pinions D in chambers c3, and ports formed as described, said easing having also an annular rim and openings CXXX, formed between the riin and GEORGE S. STRONG.

W'itnesses:

J. W. BEACH, CLINTON M. OSTRANDER. 

